html, body {
    font-family: helvetica, arial, sans-serif;
    font-size: 85%;
    width: 100%;
    height: 100%;
    margin: 0px;
}

.center {
    text-align: center
}

body, div, h1, h2, h3, h4, h5, h6, pre, code, form, fieldset, legend, input, button, textarea, p, blockquote, th, td {
    margin: 0;
    padding: 0;
}

h6{font-size: 90%;}
h5{font-size: 95%;}
h4{font-size: 100%;}
h3{font-size: 105%;}
h2{font-size: 110%;}
h1{font-size: 115%;}